# Question: The manager of a supermarket tracked the amount of time

The manager of a supermarket tracked the amount of time needed for customers to be served by the cashier. After checking with his statistics professor, he concluded that the checkout times are exponentially distributed with a mean of 6 minutes. What proportion of customers require more than 10 minutes to check out?

## Answer to relevant Questions

Use the t table (Table 4) to find the following values of t.a. t.10, 15b. t.10, 23c. t.025, 83d. t.05, 195Use a computer to find the following probabilities.a. P(t141 > .94)b. P(t421 > 2.00)c. P(t1000 > 1.96)d. P(t82 > 1.96)Use the F table (Table 6) to find the following values of F.a. F.05, 3, 7b. F.05, 7, 3c. F.025, 5, 20d. F.01, 12,60Use a computer to find the following probabilities.a. P(F600, 800 > 1.1)b. P(F35, 100 > 1.3)c. P(F66, 148 > 2.1)d. P(F17, 37 > 2.8)The heights of North American women are normally distributed with a mean of 64 inches and a standard deviation of 2 inches.a. What is the probability that a randomly selected woman is taller than 66 inches?b. A random sample ...Post your question